Pneumatic motor for driving music-sheets.



No. 788,387. "'PATENTED APR. 25, 1905.

I J. WIBSER.

PNEUMATIG MOTOR FOR DRIVING MUSIC SHEETS.

APPLICATION FILED MAY 21, I903.

5 SHEETS-SHEET 1.

F?" 1. Q 5 M Q Q 7 f I WIT/VES'SES- ATTORNEYS yzvzw PATENTED APR. 25, 1905.

J. WIBSER. PNEUMATIC MOTOR FOR DRIVING MUSIG SHEETS.

APPLICATION FILED MAY 21, 1903.

5 SHEETS-SHEET 2.

N0. 788,387. PATENTED APR. 25, 1905.

. J. WIESER. PNEUMATIC MOTOR FOR DRIVING MUSIC SHEETS.

' APPLIUATION FILED MAY 21, 1903.

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PATENTED APR. 25, 1905.

' J. WIESBR. PNEUMATIC MOTOR FOR DRIVING MUSIC SHEETS.

APPLICATION FILED MAY. 21, 1903.

5 SHEETS-SHEET 4.

WITNESSES No. 788,387. PATENTED APR. 25, 1905.

J. WIESBR.

PNEUMATIC MOTOR FOR DRIVING MUSIC SHEETS.

APPLIOATION PILE D MAY 21,1903.

6 SHEETS-SHEET 5.

Mai-(Mame fMy "M No. 788,387. Patented April 25, 1905.

UNITED STATES PATENT OFFICE.

JOSEPH VVIESER, OF NEW YORK, N. Y., ASSIGNOR OF ONE-HALF TO KARL FINK, OF NEW YORK, N. Y.

PNEUMATIC MOTOR FOR DRIVING MUSIC- SHEETS.

SPECIFICATION forming part of Letters Patent N0. 788,587, dated April 25, 1905.

I Application filed May 21, 1903. Serial No. 158,214.

To whCm/ 7:15 y Concern" the driving mechanism for the music-sheet 5 Be it known that I, Josnru VVIusER, a citifor self-playing attachment for pianos and zen of the United States, residing in New other keyedmusical instruments. This pneu- York, borough of Brooklyn, in the State of matic motor is composed of four pneumatics,

New York, have invented certain new and use m m 771, and 472 which are arranged sideful Improvements in Pneumatic Motors for Wise of each other, the collapsible portions or Driving Music-Sheets, of which the following lids being connected by pivot-rods m with is a specification. the cranked portions of the driving crank- My invention relates to an improvement in shaft S, which is supported in suitable bearlO pneumatic motors for actuating the musicings in the upright side walls of the casing Sheet-driving mechanism by which the unor second block M The cranks of the drivwinding of the perforated music-sheet from ing-shafts S are set off on the shaft S at anits roll and the rewinding on the same after gles of ninety degrees to each other, so that the piece of music has been played is accomby the consecutive action of thevfour pneu- 15 plished in a quick and effective manner. matics on the crank-shaft one full rotation of For this purpose the invention consists of the same is produced. The rotary motion of certain novel features and combinations of the crank-shaftSis transmitted by asprocketparts, which will be fully described hereinafwheel and sprocket-chain transmission a n ter and finally pointed out in the claim. a to an intermediate shaft S and thence to 20 In the accompanying drawings, Figure 1 the musicrolls 1', which carry the musicrepresents a front elevation of my improvesheet over the tracker T. However, as this ment, showing the mechanism in position for transmission mechanism forms no part of the unwinding the music-sheet from itsroll while present invention it will not be described in playing the piece of music. Fig. 2 is a plan detail.

25 view of Fig. 1. Fig. 3 is a vertical trans- The four pneumatics m m 172 m constiverse section on line 5 5, Fig. 1. Figs. Land tuting the improved pneumatic motor, are 5 are enlarged detail views of the rotary valve supported in an inclined position in the supfor actuating the individual bellows of the porting-frame upon a bottom block M, in

. improved pneumatic motor. Fig. 6 is an enwhich is arranged a longitudinal suction-chan- 0 larged plan View of the suction-channels for -nel a, connected with avertical channel 6 in the bellows of the motor. Fig. 7 is an enthe side wall of the supporting-frame Fof the larged vertical longitudinal section through self-playing attachment, said channel leading the motor on lines 9 9, Fig. 3. Fig. 8 is an to the suction-bellows. At one end of the enlarged vertical transverse section on lines bottom block M is arranged at right angles 35 1O 10, Figs. 6 and 7. Fig. 9 is a top view thereto a casing or second block M provided of the central part of the pncuinatics-supportwith an opening X, through which the cranking blocks. Fig. 10 is a bottom view of the shaft S passes. The casing or second block central part of the pneumaticssupporting M consists of a central part M provided on block. Fig. 11 is a vertical transverse seceither side with two grooves 0 the lower 40 tion on lines 13 13, Fig. 7. Fig. 12 is a plan ends of which are arranged diametrically op-' View of the bottom board of the pneumaticsposite each other, while the other ends of 9 supporting block. Fig. 13 is a plan View of these grooves terminate in the upper part of the top board of the pneumatics-supporting the central part M. The two diametrically block, and Fig. 14 is a side view of the oppoopposite lower ends of the grooves on one 45 site side board. side of the central part 11 are offset at right Similar letters of reference indicate correangles throughout to the diametrically opposponding parts throughout the several views. site lower ends of the grooves on the oppo- Referring to the drawings, M designates site side of the central part M so that the the improved pneumatic motor for actuating ends of the grooves, alternately one end on one side and one end on the other side, are arranged in a circle. Furthermore, one side of the central part M is provided with a central suction-groove intermediately between the two grooves, which communicates at one end with the opening X, through which the shaft S passes, and terminates at its opposite end in the upper part of the central part M. The grooves on each side of the central part M by being covered with side boards M M form channels and will be referred to hereinafter as such.

The bottom block M consists of three parts a central part M a top board Mi and a bottom board M The bottom board M" is provided at one end with four square holes of the same size, as shown in Fig. 12, corresponding to the upper ends of the channels of the central part M of the casing or second block M the lower ends of the channels being arranged diametrically with respect to each other. The bottom board M is provided with two holes, one of which corresponds to the suction-channel c of the central part M of the second block M while the other corresponds to a vertical suction-channel e in the side wall of the supporting-frame F. The top board .M of the bottom block M is provided with four round holes corresponding to the several pneumatics m m m m' The central part M of this bottom block has upon its lower side a suction-groove c, which being covered by the bottom board M forms a channel e and connects the hole 0 of this end of the bottom board M with the hole 0 of the other end of the bottom board M Thehole e corresponds to the vertical channel 0' of the supporting-frame F. The central part M of the bottom board M is provided with other grooves, which, being closed by the top and bottom boards 1V M respectively, form channels, which will now be more fully described. The channels 0 0 at that side of the central part M of the second block N 2 at which the suctionchannel 6 is arranged have their lower ends @0 arranged at diametrically opposite points concentric to the shaft-opening X and their upper ends terminating in the upper part of the central part M in communication with holes 0 0 of the bottom board M The hole 0 is in communication with a channel 0 in the lower side of the central part M of the bottom block M and extends approximately throughout the entire length of the same, terminating in a hole 0 of the central part M of the bottom block M and corresponding to a hole 0 of the top board M. which communicates with the pneumatic m The hole 0 on the other hand, is in communication with the channel 0 of the lower side of the central part M of the bottom block M, which passes at 0 through the central part M of the bottom block M to the upper side thereof, continuing to a point 0" immediately below a hole 0 of the top board M, which communicates with the pneumatic m channels 0 0 at the opposite side of the central part M of the second block M have their ends 0* 0 arranged at diametrically opposite points equidistant from the shaft-opening X, and the line connecting the same is at right angles to the line connecting the ends 0of the suction-channel side of the said central part M The channels 0 0 terminate in upper part of the central part M in communication with holes 0 0 in the bottom board M The hole 0 is in communication with the hole 0 in the central part M of the bottom block M and with a short channel 0, terminating at 0 immediately below the .hole 0 in the top board M*, which communicates with the pneumatic m while the other hole, 0 is in communication with hole 0 of the central part M of the bottom block M and with a curved channel 0, terminating at 0 immediately below a hole 0 in communication with a pneumatic 722*. By this arrangement, in which the second block or casing M is disposed right angularly with respect to the bottom board M, the motor may be easily built and taken apart for the inspection or the cleaning of the same; This may be done by simply removing the covers M M of the central part N1 of the second block M and the top boards M and M of the bottom board M, so that the various channels are readily accessible. The side board M is provided with openings 0", arranged concentrically with respect to the shaft-opening X in side board M and with openings 0 0 corresponding to the lower ends 0 0 of the channels 0 0 in the central part M of the second block M In the other side board, M similar openings 0" are arranged concentrically about a similar crank-shaft opening X in said side board and with openings 0 0 corresponding to the lower ends 0 0 of the channels 0 0 in the central part Mof the second block M Adjacent to each side of the second block M and mounted on the shaft S are valves f f, one of which is clearly shown in Fig. 5. These valves ff are rotated with a crankshaft and are provided with sector-shaped recesses f and segmental recesses f having at their inner faces outlet-openings as shown in Fig. 5. The valve f is attached to the crank-shaft S in such a manner that the central axis of its recesses f f is located at right angles with the central axis of the recessesf' f of the valve f. The openings 0 0 form communication between the atmosphere and a concentric channel f 5 at the inner end of the sector-shaped recesses f of each valve f f", so that the suction-channel e of the casing or second block M is placed alternately in communication of the suctionchannel of each pneumatic and with the atmosphere, thus producing four successive movements or collapses of the pneumatics, and thereby four successive impulses on the The crank-shaft S. As these impulsesare uniform and take place at regular intervals, a uniform same and a groove in the lower side in com-v munication with the wind-chest, a top board for said central part having openings in communication with said groove and with the pneumatics, and a bottom board for said central part having openings at one end thereof, a second block at approximately right angles to said pneumatics-supporting block and provided with an opening and with grooves on each side, each of said grooves communicating with one of the openings of said bottom board and terminating alternately one on either side of said second block and equidistant from the shaft-opening, and provided on one side with a suction-groove connecting the suction-channel of the pneuinatics-supporting block with the shaft-opening, side boards for said second block provided with openings corresponding to the ends of the grooves of said second block and to the shaft-opening, and valves'having recesses and air-inlets in their faces, said valves being mounted on said shaft on either side of said second block and adapted to successively connect the channels leading to the pneumatics alternately with the wind-chest and with the atmosphere.

In testimony that I claim the foregoing as my invention 1 have signed my name in presence of two subscribing witnesses.

JOSEPH WIESER.

Witnesses:

PAUL GoEPEL, C. P. GoEPEL. 

